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defined.go
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/
defined.go
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package dynaml
func (e CallExpr) valid(binding Binding) (interface{}, EvaluationInfo, bool) {
pushed := make([]Expression, len(e.Arguments))
ok := true
resolved := true
valid := true
var val interface{}
copy(pushed, e.Arguments)
for i, _ := range pushed {
val, _, ok = ResolveExpressionOrPushEvaluation(&pushed[i], &resolved, nil, binding, true)
if resolved && !ok {
return false, DefaultInfo(), true
}
valid = valid && (val != nil)
}
if !resolved {
return e, DefaultInfo(), true
}
return valid, DefaultInfo(), ok
}
func (e CallExpr) defined(binding Binding) (interface{}, EvaluationInfo, bool) {
info := DefaultInfo()
pushed := make([]Expression, len(e.Arguments))
ok := true
resolved := true
copy(pushed, e.Arguments)
for i, _ := range pushed {
_, info, ok = ResolveExpressionOrPushEvaluation(&pushed[i], &resolved, nil, binding, true)
if resolved {
if !ok {
return false, DefaultInfo(), true
}
if info.Undefined {
return false, DefaultInfo(), true
}
}
}
if !resolved {
return e, DefaultInfo(), true
}
return true, DefaultInfo(), ok
}